122279678 has 4 divisors (see below), whose sum is σ = 183419520. Its totient is φ = 61139838.

The previous prime is 122279669. The next prime is 122279699. The reversal of 122279678 is 876972221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30569918 + ... + 30569921.

It is an arithmetic number, because the mean of its divisors is an integer number (45854880).

Almost surely, 2^122279678 is an apocalyptic number.

122279678 is a deficient number, since it is larger than the sum of its proper divisors (61139842).

122279678 is an equidigital number, since it uses as much as digits as its factorization.

122279678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61139841.

The product of its digits is 169344, while the sum is 44.

The square root of 122279678 is about 11058.0141978567. The cubic root of 122279678 is about 496.3462695427.

The spelling of 122279678 in words is "one hundred twenty-two million, two hundred seventy-nine thousand, six hundred seventy-eight".